基于粒子群算法的大坝力学参数反演

Inverse Analysis of Mechanical Parameters of Dam based on PSO

粒子群算法是一种集群优化算法,结合通用的商业有限元软件MSC.Marc,利用其与FORTRAN语言的接口,编写了基于MSC.Marc的物理力学参数的粒子群算法反演程序。结合陈村大坝的实测资料,利用该方法反演了大坝坝体弹性模量。算例表明,采用粒子群算法和MSC.Marc反演大坝坝体的物理力学参数是可行的。

PSO is a swarm optimum algorithm, it combines with MSC.Marc, a common commercial finite element software, to write the PSO inverse analysis program based on the MSC.Marc physical and mechanical parameters, by using the interface of MSC.Marc and FORTRAN language. In light of the actual monitoring data of Chencun Dam, this paper inverses the elasticity modulus of the dam body by using this method. The example showed that it is feasible to inverse the physical and mechanical parameters of dam body by using the method of PSO and MSC.Marc.